Projecting-lamp.



G. A. & A. O. MATISSE.

PROJBGTING LAMP.

APPLICATION FILED AUG. 29 1914.

1,124,051, Patented Jan; 5, 1915.

ran STASEANT onnron.

CARL A. MATISSE AND ALBERT C. MATISSE, OF NEW YORK, N.

PBOJ'EGTING-LAMP.

manner.

Specification of Letters Patent.

Patented Jan. 5, 1915.

Application filed August 29, 1914:. Serial No. 859,234.

To all whom it may concern Be it known that we, CARL A. MATISSE and ALBERT C. MATISSE, citizens of the United States, and residents of the city of 5 New York, New Brighton, borough of Richmond, in the county of Richmond and State of New York, have invented a new and Improved Projecting-Lamp, of which the following is a full, clear, and exact description.

Our invention relates to projecting lampshaving arefiector, and has reference more particularly to means for adjusting and moving the source of light relatively to the reflector.

An object of the invention is to provide a simple, inexpensive, and efiicient lamp in which the parallel concentrated beam of light can be dissipated or its angularity with reference to the axis of the reflector changed.

A further object of the invention is to provide a projecting lamp in which various sizes of light bulbs may be used.

With the above and other objects in view, the nature of which will more fully appear as the description proceeds, the invention consists in the novel construction, combination and arrangement of parts as herein fully described, illustrated and claimed.

In the accompanying drawings, forming part of the application, similar characters of reference indicate corresponding parts in all the views, and- Figure 1 is an axial section through a projecting lamp embodying our invention; Fig. 2 is a transverse section in perspective showing the socket for the bulb and the means for actuating the same; Fig. 3 is a perspective view of the support for the socket; Fig; 4 is a perspective view of the guide for the socket; Fig. 5 is an axial section of a lamp showing an electrical arrangement for moving. the source of light; and- Fig. 6 is a perspective view of the socket and the solenoid'rod extension engaging it.

Referring to the drawings, particularly to Figs. 1 to 4 inclusive, 7 represents the outer casing of thelamp and 8 the inner casing. The inner casing is spaced from the outer casing so that a compartment 9 is formed by the two casings. If desired, the inner casing 8 may form the reflector, but preferably a paraboliorefiector 10 is secured to the casing 8 in any suitable way.

as Secured to the central part of the casing 8 andprojecting through the reflector is a socket support 11 formed of,an apertured flange 12 secured.in any suitable way to the casing and having diametrically opposite lateral projections 13 at the aperture of the flange. The said lateral projections 13 are reinforced at the ends thereof by an arcuated member 14: forming an integral part of said projections 13. These projections 13 are provided with grooves 15 which are in a plane passing through the axis of the reflector.

One end of a bulb socket 16. projects into the compartment 9 through the aperture of the socket support 11. The other end of the socket 16, which is within the casing 8, is provided with means adapted .to removably receive a bulb 17 forming the source of light for the lamp. The socket '16 is provided with pins 18 engaging the grooves 15, and on which pins said socket can rock in said support 11 and also slide. The rocking movement of said socket is limited at one side by the reinforcing member 14, and

' when the socket is engaging the stop or re inforcement 14 the light of the bulb 17 is in the axis of the reflector 10. The end of the socket within the compartment 9 is also provided. with a pair of diametrically opposite pins 19 engaging arcuated slots 20 of a guide member 21, the radius of said slots having its center in the axis of the pins 18. This guide member is provided with a threaded aperture 22engaged by a screw 23 mounted to rotate in the outer casing 7 and is prevented from moving axially, said screw be ing operable from the outside of the casing 7. The slots 20 engaging the pins 19 of the socket 16 prevent the socket from moving axially, but the socket is moved axially when the screw 23 is operated.

To control the rocking movement of the socket the same is provided with a yoke 24 hinged to said socket between the pins 18 and-19. A rod 25 having a loose joint with a yoke extends through a sleeve 26 in the outer casing; and the end of the rod projecting outside is threaded, a knurled nut 27 being provided thereat so that the rod can rod outwardly the socket 16 with the bulb 17 is moved into the position indicated in dotted lines in Fig. 1, and thus the normal parallel rays forming the beam of light are dissipated. From the above it will be seen that by means of the screw 23 different sizes of bulbs can be brought into the focus of the reflector and maintained thereat, while the arrangement controlled by the screw 27 will throw the socket into and out of focus by moving the bulb out of the axis or bringing the same back again.

In Figs. 5 and 6. a modified structure is shown whereby the movement of the bulb in and out of the axis is electrically controlled.

provided with an axial tubular member 29 which forms a guide for a socket support 30,

which is also tubular in form and mounted to telescope in the tubular member 29. The end of the socket support 30 projecting out of the guide 29 has a part of its lateral surface removed to admit a tongue 31 of a bulb socket 32. The socket 32 is provided with a pair of diametrically opposite pins 33 engaging hook-shaped portions 34 of the socket support 30. These hook-shaped portions form bearings for the said socket on which the same is mounted to turn. The pins 33 of the socket are maintained in the bearing by a coil spring 35 mounted on a rod 36, one end of which pivotally engages the socket 32 below its bearing point, while the other end projects through a shoulder 37 formed on the lateral surface of the socket support 30. One end of the spring 35 abuts against the shoulder 37, while the other end engages a collar provided on the rod 36 adjacent the socket 32. Due to the position of the rod 36 the tendency of the spring 35 is to maintain the tongue 31 of the socket 32 against the lateral surface of the socket support 30 facing the shoulder 37 and, therefore, to resist any rocking movement of the socket.

To cause the socket 32 to rock against the resistance of the spring 35, a solenoid 38 is secured to the socket support 30 so that the core 39 thereof is perpendicular to the tongue 31 of the socket. The core 39 has one end thereof projecting into a dash-pot 40 provided on the solenoid. The other end of the core is secured to the tongue 31 by a connecting rod 41, a suitable slot being provided for the connecting rod in the support 30. To rock the socket on its bearings against the spring 35, the solenoid 38 is energized by means of a switch 43 which controls the connection of thesolenoid with the electrical source 44. It will be noted that when the switch 43 is made to engage conduit 45 electricity will flow from the source through the conduit 46, through the switch 43, conduit 47, solenoid 38, through the support 30, through the casing 7, and

then through conduit 48 back to the source. thus completing the circuit. This will cause the corev 39 to move into the solenoid, carrying therewith the tongue 31 with the socket 32 into the position shown in dotted line in Fig. 5.

To maintain the socket 32 in the position shown in dotted line in Fig. 5 without the use of current, the socket is locked in that position by jamming the end of the tongue 31 against the socket support 30 by a flattened part of a flange or head 49 provided on a plunger 50. The jamming is caused by a coil spring 51 normally tending to move the plunger away from a second solenoid 52 mounted within the socket support 30 and for which the plunger 50 forms the core. To disengage the flange or head 49 from the end of the tongue 31 the solenoid 52 must be energized. For this purpose a second contact 53 is provided for the switch 43, and by bringing said switch 43 in engagement with the contact 53 current will flow through the conduit 54 to the solenoid 52 through the casing and return conduit 48. The current passing through the solenoid will cause the plunger 50 to move inwardly and allow the spring 35 to force the socket '32 to the position shown in full lines, the dash-pot 40 diminishing the shock between the tongue 31 and the support 30. The end of the tongue 31 forms a stop for the plunger 50 after the current is cut off from the solenoid 52 by engaging the head 49, thus limiting the expansion of the spring 51.

To prevent the rotation of the plunger 50, so as to maintain the flattened part of the flange in proper relation with the end of the tongue 31, the solenoid is provided with a stationary plug 55 which has a tongue 56 engaging an end slot 57 provided in the plunger 50. The plug 55 is preferably provided with a head which seals the end of the socket support 30. The plug 55 is threaded centrally and engaged by a screw 58 the head of which is located outside the casing 7. A coil spring 59 is mounted between the casing 7 and the socket support 30 so that the socket support can be adjusted axially by means of the screw 58. The inner casing 8 is provided with an axial aperture large enough to permit the movement of the socket 32. If desired, said casing may form the reflector.

From the above description it will be seen that by means of the screw 58 diiferent sizes of bulbs can be adjusted to bring the light into the focus of the reflector; and by means of the solenoid arrangement the bulb can be thrown out or into the axis by means of the switch 43. When the switch 43 is made to engage and disengage the contact 45 the socket will be thrown out of action,

and when the switch is made to disengage 7 connection with the accompanying drawings, the advantage of the construction and operation of the device shown will be readily understood by those skilled in the art to which the invention pertains; and'while we have described the principle of operation, together with the device which we now consider to be the best embodiment-thereof, We desire to have it understood that the device shown is merely illustrative and that such changes may be made when desired as are within the scope of the appended claims.

Having thus described our invention, we

claim as new and desire to secure by Letters Patent:

1. In a projecting lamp, a reflector, a lamp socket pivotally mounted in the axis of the reflector, means for controlling the movement of said socket on its pivot, and means for moving said, socket in the axis of the reflector.

2. In a projecting lamp, a casing, a reflector therein,'a lamp socket carrier axial with the reflector, means for moving said socket carrier axially, a lamp socket pivotally mounted in said carrier, and means for moving said socket on its pivot to' and from the axis.

3. In a projecting lamp, a casing, a reflector therein, a lamp socket support associated with said casing and co-axial with said reflector, a lamp socket pivotally mounted in said support, means tending to maintain said socket in axis with said reflector, and means for swinging said socket axis, and means for maintaining said socket thereat. I

5. In a projecting lamp, a casing, a reflector therein, a lamp socket support ad- I justably mounted in the axis of the reflector,

a lamp socket pivotally mounted in said support, means tending to maintain said socket in axis with said reflector, and electrically operated means for swinging said socket out of the axis. 7

6. In a projecting lamp, a casing, a reflector therein, a lamp socket associated with said casing and mounted to telescope in the axis of the reflector, means for controlling the telescoping movement, a lamp socket pivotally mounted in said support, resilient means tending to maintain s'aid socket in axis with said reflector, electrically operable means for swinging said socket out of the axis, means for locking said socket in the swung-out position, and electricallyoperable means for unlocking the socket whereby the same may be returned to the axis by the resilient means. 7. In a projecting lamp, a reflector, a source of light mounted to swing transversely and to move longitudinally of said reflector, and electro-magnetic means for moving said light transversely.

8. In a projecting lamp, a reflector, a lamp socket pivotally mounted in the axis of the reflector, electro-magnetic means for swinging the socket out of the axis, means for locking the socket in the swung out position, electro-magnetic means for unlocking the socket, and resilient means for restoring the socket to its normal axial position with the reflector.

In testimony whereof we have signed our names to this specification in the presence of two subscribing witnesses.

CARL A. MATISSE. ALBERT G. MATISSE. Witnesses:

JoHN P. MARTINEZ, JosErE A. BRUNO. 

